R&D Chemist Electrochemical Sensors & Functional Materials

About Aprisium

Aprisium is a Singapore-based DeepTech company developing advanced real-time and autonomous contamination monitoring solutions for water and fluid systems. Our technology combines electrochemical sensing, engineered materials, fluidics, electronics, IoT connectivity and data analytics to enable rapid, at-source detection of contaminants across industrial, environmental and utility applications.

We are looking for an R&D Chemist - Electrochemical Sensors& Functional Materials to join our research and development team and contribute to the development of next-generation sensing technologies.

Role Overview

The R&D Chemist will be responsible for developing and optimizing electrochemical sensing systems, functional materials and engineered sensing interfaces for selective detection of chemical species in complex liquid environments.

The role requires a strong grounding in electrochemistry, analytical chemistry and surface/material science, together with a hands-on experimental mindset. The successful candidate will work across material formulation, electrode functionalisation, sensor characterization, analytical validation and translation of laboratory concepts into robust sensing platforms.

This position is particularly suited to a researcher who enjoys working at the intersection of electrochemistry, functional polymers, molecular recognition and surface engineering.

The candidate in this position can develop quickly to become the team lead with the right attitude, expertise and leadership skills.

Key Responsibilities

. Design, develop and optimize electrochemical sensors for detection of inorganic and chemical contaminants in liquid samples.

. Develop and evaluate functional materials and selective sensing interfaces for improved sensitivity, selectivity and stability.

. Perform electrode modification and surface functionalisation using appropriate chemical, polymeric or composite materials.

. Investigate interactions between target analytes and sensing materials to improve target-specific recognition and interference rejection.

. Develop and optimize material formulations, coatings, films and deposition methodologies for electrochemical sensing applications.

. Conduct electrochemical characterization using techniques such as cyclic voltammetry, differential pulse voltammetry, square-wave voltammetry, chronoamperometry, electrochemical impedance spectroscopy and related methods.

. Characterize sensing surfaces and functional materials using appropriate analytical and surface characterization techniques.

. Establish correlations between material properties, surface chemistry and electrochemical sensor performance.

. Design and execute structured experiments to evaluate sensitivity, selectivity, limit of detection, linear range, response time, repeatability, reproducibility and long-term stability.

. Conduct interference studies involving competing ions, molecules and matrix effects in real-world samples.

. Develop calibration methodologies and analytical protocols for sensor validation.

. Work with water, wastewater, industrial process fluids and other complex liquid matrices.

. Collaborate closely with multidisciplinary teams including chemistry, materials science, electronics, fluidics, mechanical engineering, data science and product engineering.

. Support translation of laboratory-scale sensor concepts into manufacturable and field-deployable sensing platforms.

. Conduct literature reviews and evaluate emerging materials, sensing mechanisms and electrochemical methodologies.

. Maintain detailed experimental records, technical documentation and research reports.

. Contribute to intellectual property development, patent disclosures and technology documentation where applicable.

Required Qualifications

. Bachelor's, Master's or PhD degree in Chemistry, Electrochemistry, Analytical Chemistry, Materials Chemistry, Polymer Chemistry, Chemical Engineering, Materials Science or a closely related discipline.

. Strong theoretical and practical understanding of electrochemical principles and electrochemical analytical techniques.

. Hands-on experience in electrochemical sensor development, electroanalytical chemistry or related research.

. Experience with electrode modification, surface functionalisation or development of engineered sensing interfaces.

. Understanding of surface chemistry, material-analyte interactions and selective recognition mechanisms.

. Experience designing and conducting laboratory experiments independently.

. Strong analytical and problem-solving skills with the ability to interpret complex experimental data.

Preferred Technical Skills

Candidates with experience in some of the following areas will have an advantage:

. Functional polymers and polymer-modified electrodes.

. Synthetic recognition materials or polymer-based selective interfaces for target-specific chemical sensing.

. Functional material synthesis, formulation or modification.

. Thin films, coatings, membranes or composite sensing materials.

. Polymer-analyte and surface-analyte interactions.

. Surface functionalisation and interface engineering.

. Electrodeposition, electropolymerisation, drop casting, spin coating or related deposition techniques.

. Nanomaterials or nanostructured electrode surfaces.

. Electrochemical Impedance Spectroscopy (EIS).

. Surface and material characterization techniques including SEM, AFM, FTIR, Raman spectroscopy, XPS, contact-angle measurement, profilometry, UV-Vis spectroscopy or related methods.

. Analytical validation and method development.

. Signal optimization and interference mitigation.

. Working with low-concentration analytes and trace-level detection.

. Sensor testing in complex environmental or industrial matrices.

What We Are Particularly Interested In

We are interested in candidates who have worked on selective chemical recognition at engineered surfaces and understand how material chemistry can be used to preferentially interact with specific target compounds or ions.

Candidates with experience developing synthetic recognition materials, functional polymer systems, affinity-based sensing interfaces or other target-selective materials for chemical sensing are particularly encouraged to apply.

The ability to understand the relationship between surface chemistry, molecular interactions and electrochemical response will be especially valuable.

Candidate Profile

. Experimental and highly hands-on.

. Curious about fundamental chemistry but motivated by real-world applications.

. Comfortable working in an early-stage technology environment where experimentation and iteration happen rapidly.

. Capable of independently designing experiments rather than only following established protocols.

. Comfortable troubleshooting unexpected experimental results.

. Able to move between fundamental research and product-oriented engineering.

. Detail-oriented in experimental design, documentation and analysis.

. Collaborative and comfortable working within a multidisciplinary engineering team.

. Excited by the opportunity to develop sensing technologies that can move from the laboratory into real-world industrial deployment.

Experience

. 2-5 years of relevant research or industrial experience is preferred.

. Exceptional candidates completing a Bachelor's, Master's or PhD with highly relevant electrochemical sensing or functional materials research will also be considered.

. Prior experience developing sensors from research concept through prototype validation would be advantageous.

What Success Looks Like

. Developing new sensing chemistries and functional interfaces capable of improving target selectivity and sensitivity.

. Demonstrating repeatable and reproducible electrochemical performance.

. Improving robustness of sensors when exposed to complex real-world matrices.

. Translating promising laboratory sensing concepts into practical sensor architectures.

. Building strong scientific understanding of how material and surface properties influence sensor response.

. Contributing to new intellectual property and future generations of Aprisium sensing technologies.

Why Join Aprisium

At Aprisium, you will work on sensing technologies designed to address real-world environmental and industrial challenges. You will have the opportunity to work across fundamental chemistry, materials science, electrochemical sensing and product development while seeing your research translated into technologies deployed in the field.

This is an opportunity for a chemist who wants to go beyond academic experimentation and help build practical, scalable sensing technologies with measurable environmental and commercial impact.